Power over fiber system and feed light visualization lid member

Abstract

A power over fiber system includes a power sourcing equipment, a powered device, an optical fiber cable and an openable/closeable or attachable/detachable lid member. The power sourcing equipment includes a semiconductor laser that oscillates with electric power, thereby outputting feed light. The powered device includes a photoelectric conversion element that converts the feed light output by the power sourcing equipment into electric power. The optical fiber cable transmits the feed light from the power sourcing equipment to the powered device. The feed light is invisible light. The lid member covers an outgoing portion from which the feed light goes out. At least part of a light receiving portion of the lid member, the light receiving portion receiving the feed light, is made of a wavelength conversion material that converts a wavelength of the feed light into a wavelength of visible light.

The invention claimed is: 
     
       1. A power over fiber system comprising:
 a power sourcing equipment including a semiconductor laser that oscillates with electric power, thereby outputting feed light; 
 a powered device including a photoelectric conversion element that converts the feed light output by the power sourcing equipment into electric power; and 
 an optical fiber cable that transmits the feed light from the power sourcing equipment to the powered device, 
 wherein the feed light is invisible light, 
 wherein the power over fiber system further comprises an openable/closeable or attachable/detachable lid member that covers an outgoing portion from which the feed light goes out, and 
 wherein at least part of a light receiving portion of the lid member, the light receiving portion receiving the feed light, is made of a wavelength conversion material that converts a wavelength of the feed light into a wavelength of visible light. 
 
     
     
       2. The power over fiber system according to  claim 1 , wherein, as the lid member, a lid member covering a feed light outgoing portion of the optical fiber cable is provided. 
     
     
       3. The power over fiber system according to  claim 2 , wherein, as the lid member, a lid member covering a feed light outgoing portion of the power sourcing equipment is provided. 
     
     
       4. The power over fiber system according to  claim 3 , wherein a semiconductor material of a semiconductor region of the semiconductor laser, the semiconductor region exhibiting a light-electricity conversion effect, is a laser medium having a laser wavelength of 500 nm or less. 
     
     
       5. The power over fiber system according to  claim 2 , wherein a semiconductor material of a semiconductor region of the semiconductor laser, the semiconductor region exhibiting a light-electricity conversion effect, is a laser medium having a laser wavelength of 500 nm or less. 
     
     
       6. The power over fiber system according to  claim 1 , wherein, as the lid member, a lid member covering a feed light outgoing portion of the power sourcing equipment is provided. 
     
     
       7. The power over fiber system according to  claim 6 , wherein a semiconductor material of a semiconductor region of the semiconductor laser, the semiconductor region exhibiting a light-electricity conversion effect, is a laser medium having a laser wavelength of 500 nm or less. 
     
     
       8. The power over fiber system according to  claim 1 , wherein a semiconductor material of a semiconductor region of the semiconductor laser, the semiconductor region exhibiting a light-electricity conversion effect, is a laser medium having a laser wavelength of 500 nm or less. 
     
     
       9. A feed light visualization lid member being a lid member covering, of a power sourcing equipment including a semiconductor later that oscillates with electric power, thereby outputting feed light being invisible light, an outgoing portion from which the feed light goes out,
 wherein at least part of a light receiving portion of the lid member, the light receiving portion receiving the feed light, is made of a wavelength conversion material that converts a wavelength of the feed light into a wavelength of visible light. 
 
     
     
       10. A feed light visualization lid member being a lid member covering, of an optical fiber cable that transmits feed light being invisible light from a power sourcing equipment to a powered device of a power over fiber system, an outgoing portion from which the feed light goes out,
 wherein at least part of a light receiving portion of the lid member, the light receiving portion receiving the feed light, is made of a wavelength conversion material that converts a wavelength of the feed light into a wavelength of visible light.